JPH0580125U - Electric clamper fittings - Google Patents

Abstract

(57) [Summary] [Purpose] An object of the present invention is to obtain an electric clamper fitting in which a clamper fitting press-formed from a steel plate material can be more easily fixed around the end of the electric stick. [Structure] A plurality of electric wire restraining pieces 4 are alternately projected on the left and right sides of the electric wire holding portion 3, and a clamp metal fitting 2 in which a rotation preventing piece 5 is projected on the left and right in the middle of the electric wire holding portion 3 is attached to the steel plate material 1. Punching by pressing, bending the central portion of the electric wire holding portion 3 of the clamper fitting 2 in a U shape to raise the electric wire suppressing piece 4 to the left and right, and bending the left and right anti-rotation pieces 5 to the outside, and It is characterized in that a mountain-shaped bead portion 7 for pushing in the side surface of the electric wire is provided at the center of the electric wire holding portion 3 so as to project inward.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an electric clamper fitting fixed to an end of an electric wire in which a plurality of electric wires are bundled.

[0002]

[Prior Art]

 Conventionally, this kind of electric clamper metal fitting is generally formed in a ring shape from copper alloy or aluminum alloy, and when this ring-shaped clamper fitting is fixed to the end of the electric power supply, for example, 8 and FIG. 9, after inserting the end of the electric wire 12 into the ring 11, the outer periphery of the ring 11 is crushed by caulking or the like of the dedicated press machines 13a and 13b so that the core wire 12a does not break, and the projection 11a The protrusion 11a serves as a retainer and a retainer when the electric wire 12 is attached to a connector or the like.

[0003]

[Problems to be solved by the device]

 However, when fixing the conventional ring-shaped clamper metal fittings to the end of the electric wire, it takes time to pass the end of the electric wire through the ring one by one, and the caulking jig depends on the number and diameter of the electric wire for mass production. Since it was necessary to set the position and height of the machine and set it on a dedicated press machine, there was a problem that it took time to set up the work. Also, if the ring is not properly selected according to the thickness of the wire, the core wire may be broken due to the caulking work.Therefore, it is necessary to prepare a large number of ring-shaped clamper fittings of several types corresponding to the thickness of the wire. Inevitably, inventory management is troublesome and costs are high.

An object of the present invention is to solve the above-mentioned conventional problems, and a clamper fitting of an electric wire, which can be easily fixed around the end of the electric wire, with a clamper fitting pressed from a steel plate material. To get.

[0005]

[Means for Solving the Problems]

 In order to achieve this object, the clamper fitting of the electric wire according to the present invention is provided with a plurality of electric wire restraining pieces alternately projecting on the left and right sides of the electric wire holding portion, and the turning piece is provided on the left and right in the middle of the electric wire holding portion. The protruding clamper metal fittings are punched out by pressing a steel plate material, the central part of the electric wire holding portion of the clamper metal fittings is curved in a U shape to raise the electric wire restraining pieces to the left and right, and the left and right anti-rotation pieces. Is bent outward, and a mountain-shaped bead portion for pushing in the side surface of the electric wire is protruded inward at the center of the electric wire holding portion.

[0006]

[Action]

 In the electric clamper fitting according to the present invention, a predetermined electric wire end is set on the U-shaped curved electric holding portion of the clamper fitting, and the electric holding pieces raised to the left and right of the electric holding portion are placed on the left and right sides. The wire is wrapped so as to press down the outer periphery of the electric wire, and a part of the electric wire is bent by the bead portion of the electric wire holding portion, so that the clamper fitting can be fixed so as not to come out from the end of the electric wire. Therefore, it is not necessary to prepare a clamper metal fitting corresponding to the thickness of the electric wire, and the mass production is possible without worrying that the core wire is broken during the crimping work.

[0007]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a top view showing a state where an electric clamper fitting of the present invention is press-molded, and FIG. 2 is a development view of the clamper fitting punched from a steel plate material by press working. In the figure, 1 is a steel plate material having an appropriate strength, and 2 is a clamper metal member punched from the steel plate material 1 by the press working in the first step. A large number of the clamper fittings 2 are formed in a chain shape on the carrier portion 1a left on one end side of the steel plate material 1.

In the state where the clamper fitting 2 is punched from the steel plate material 1 by the press working in the first step, as shown in FIG. 2, a plurality of electric wire restraining pieces 4 are alternately projected to the left and right of the electric wire holding portion 3. In addition to being installed, the anti-rotation pieces 5 are provided to the left and right in the middle of the electric wire holding portion 3. Further, a bent piece 4a which is bent slightly inward is formed at the tip of the electric wire restraining piece 4, and a thin reinforcing bead 6 is projected from the electric wire holding portion 3 to the upper surface in the figure. Has been formed.

Further, as shown in FIGS. 1, 3, and 4, the clamper metal fitting 2 punched out by the press working of the first step has the central portion of the electric wire holding portion 3 formed by the press molding of the second step. The U-shaped curving pieces 4 and 4 are raised to the left and right, and the left and right anti-rotation pieces 5 are bent outward. Further, at the same time as the U-shaped holding portion 3 is curved in a U-shaped shape during the press molding of the second step, a mountain-shaped bead portion 7 for pushing the side surface of the electric wire is projected inward at the center of the electric-holding portion 3. To be done.

Next, based on the embodiment of the present invention configured as described above, a case where the clamper fitting 2 is fixed to the end portion of the electric casing 10 will be described. First, as shown in FIG. 4, a predetermined end portion of the electric wire 10 is set on the electric wire holding portion 3 of the clamper fitting 2 which is curved in a U shape. Then, the electric wire restraining pieces 4 and 4 which are erected on the left and right of the electric wire holding portion 3 are bent from the left right side so that the bending piece 4a bites into the electric wire 10, and as shown in FIGS. Wrap it so that the outer circumference of 10 is pressed down. At this time, a part of the electric wire 10 is bent so that the bead portion 7 of the electric wire holding portion 3 bites into it, so that the clamper fitting 2 can be fixed to the end of the electric wire 10 without coming out. In addition, after fixing the clamper metal fitting 2 to the end of the electric wire 10, the carrier 1a having a large number of the clamper metal fitting 2 formed in a chain shape is sequentially moved to fix the clamper metal fitting 2 to the end of the electric wire 10. Can be performed continuously. The work of fixing the clamper fitting 2 to the electric wire 10 can be performed continuously by moving a plurality of clamper fittings 2. After fixing the clamp metal fitting 2 to the end of the electric wire 10, the clamp metal fitting 2 is cut from the carrier 1a.

FIG. 7 is a cross-sectional view showing a state in which the electric wire 10 to which the clamper fitting 2 according to the present invention is fixed is attached to the connector case 8 or the like. At this time, the rotation stopper piece 5 of the clamper fitting 2 is the connector case. 8 is locked to the side wall of the fitting portion 8a or is fitted into a locking groove of the fitting portion 8a (not shown) to prevent rotation.

[0013]

[Effect of the device]

 As described in detail above, the clamper fitting of the electric wire according to the present invention comprises a plurality of electric wire restraining pieces which are alternately projected to the left and right of the electric wire holding portion, and a rotation stopper which is protruded to the left and right in the middle of the electric wire holding portion. The clamper metal fitting consisting of one piece is punched out from the steel plate material, the central part of the electric wire holding portion is curved in a U shape to raise the electric wire restraining piece to the left and right, and the left and right anti-rotation pieces are bent outward and , A mountain-shaped bead that presses the side of the wire into the center of the wire holding part projects inward, and can be applied even if the thickness of the wire changes slightly, and inventory control is possible. It's easy. In addition, the position and height of the caulking jig is determined by the number and diameter of the electric wire, and no setup such as passing the end of the electric wire through the clamper fitting is not required, and the installation work of the clamper fitting is easy. Moreover, mass production is possible without concern that the core wire will be broken during the crimping work, so that a significant cost reduction can be achieved.

[Brief description of drawings]

FIG. 1 is a top view showing a state in which an electric clamper fitting according to the present invention is press-formed.

[Fig. 2] Development view of clamper metal fittings stamped from steel sheet material

3 is a sectional view taken along line 3-3 of FIG.

4 is a sectional view taken along line 4-4 of FIG.

FIG. 5 is a side view showing a state in which the clamper fitting according to the present invention is fixed to the end of the electric wire.

6 is a sectional view taken along line 6-6 of FIG.

FIG. 7 is a cross-sectional view showing a state in which an electric wire having a clamper metal fitting is attached to a connector.

FIG. 8 is a side view illustrating a case where a conventional clamper metal fitting is fixed to an electric wire end portion.

FIG. 9 is a cross-sectional view showing a state in which a conventional clamper metal fitting is fixed to the end of the electric wire.

[Explanation of symbols]

 1 Steel plate material 2 Clamper metal fittings 3 Electric wire holding part 4 Electric wire holding piece 5 Whirl-stop piece 7 Bead part

Claims (1)

[Scope of utility model registration request] 1. A clamper metal fitting, in which a plurality of electric wire restraining pieces are alternately projected on the left and right of an electric wire holding portion, and anti-rotation pieces are projected on the left and right in the middle of the electric wire holding portion, is punched by pressing a steel plate material. , The central portion of the electric wire holding portion of the clamper fitting is bent in a U shape to raise the electric wire restraining pieces to the left and right, and the left and right anti-rotation pieces are bent outward, and the central portion of the electric wire holding portion is An electric clamper fitting characterized in that a mountain-shaped bead portion that presses the side surface of the electric wire is provided so as to project inside.